کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1194321 | 1492394 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron transfer and bond-forming reactions following collisions of SF2+ with Ar
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electron transfer and bond-forming reactions following collisions of SF2+ with Ar Electron transfer and bond-forming reactions following collisions of SF2+ with Ar](/preview/png/1194321.png)
چکیده انگلیسی
Collisions between SF2+ and Ar have been investigated using time-of-flight mass spectrometry over a collision energy range of 2.6-6.2Â eV in the centre-of-mass frame. The formation of SF+, S+ and Ar+ in single electron transfer reactions has been detected and the cross-sections, in arbitrary units, for forming these species have been evaluated. This electron transfer reactivity has been rationalized by Landau-Zener calculations. The reactivity in this collision system also involves an unusual bond-forming reaction which generates ArS2+. Quantum chemical calculations of the relevant energetics show that the lowest lying singlet and triplet states of ArS2+ are bound and are energetically accessible to this collision system at the above collision energies. This energetics analysis also shows that electron transfer in the exit channel between the separating ArS2+ and F atom is likely to be inefficient, explaining why we detect the observed products and not ArS+Â +Â F+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mass Spectrometry - Volumes 249â250, 1 March 2006, Pages 279-288
Journal: International Journal of Mass Spectrometry - Volumes 249â250, 1 March 2006, Pages 279-288
نویسندگان
Paul W. Burnside, Stephen D. Price,